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URL https://opencores.org/ocsvn/or1k_soc_on_altera_embedded_dev_kit/or1k_soc_on_altera_embedded_dev_kit/trunk

Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

[/] [or1k_soc_on_altera_embedded_dev_kit/] [trunk/] [soc/] [sw/] [orpmon/] [cmds/] [touch.c] - Blame information for rev 20

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Line No. Rev Author Line
1 20 xianfeng
#include "common.h"
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#include "support.h"
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#include "spi.h"
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int touch_cmd (int argc, char *argv[])
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{
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        unsigned long x, y, z1, z2;
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        float res;
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        if (argc == 0) {
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                printf("usage:  -r  read coordinates\n");
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                printf("        -c  read coordinates in a loop (press any key to exit)\n");
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        }
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        else if (argc == 1) {
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                if (!strcmp(argv[0], "-r")) {
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                        spi_init(0, 1000000, 21, 0, 1, 0);
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                        printf("X = %.3lx\n", spi_xmit(0xd3l << 13) & 0xfff);
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                        printf("Y = %.3lx\n", spi_xmit(0x93l << 13) & 0xfff);
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                }
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                else if (!strcmp(argv[0], "-c")) {
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                        spi_init(0, 1000000, 21, 0, 1, 0);
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                        while (1) {
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                                x = spi_xmit(0xd3l << 13) & 0xfff;
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                                z1 = spi_xmit(0xb3l << 13) & 0xfff;
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                                z2 = spi_xmit(0xc3l << 13) & 0xfff;
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                                res = (z2/z1) - 1;
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                                res = ((float)x * res)/4096;
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                                if ((int)res < 20) {
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                                        y = spi_xmit(0x93l << 13) & 0xfff;
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                                        printf("X = %.3lx\n", x);
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                                        printf("Y = %.3lx\n\n", y);
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                                }
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                                if (testc())
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                                        break;
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                        }
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                }
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        }
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        else {
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                printf("usage:  -r  read coordinates\n");
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                printf("        -c  read coordinates in a loop (press any key to exit)\n");
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        }
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        return 0;
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}
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void module_touch_init (void)
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{
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  register_command ("touch", "", "touch screen utility", touch_cmd);
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}
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